Quantity   Component name
1 × Wire coathanger
1 × Battery case Preferably with an on/off switch
2 × LED I used white, but whatever colour you want
1 × 15g or so of Polymorph To create a diffuser and hold the LEDs in place
2 × Small bits of veroboard
2 × Resistors Sized to get the LED brightness you want
1 × Misc wire